249,647 research outputs found

    Measurement of User Perceived Web Quality

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    Web sites are now considered an extension of the entire business, not just an additional channel or storefront or a simple information portal for the company. Creating an effective web site that gives a positive overall experience to the customers and visitors is important in business today. Measuring the quality of web site from the users’ perspective, will give a fast and early feedback to the firm and enables it to take corrective actions and improve its operations. Several instruments and methodologies were developed to measure the web site performance, usability and quality in information systems, marketing and operations management literature. This study reviews the literature in web quality measurement and employs a 25 item instrument developed by Aladwani and Palvia to measure the user perceived web quality. It attempts to test the factorial validity of the instrument in Australian context using Structural Equation Modelling technique. Analysis revealed that the data set do not fit the Aladwani and Palvia’s model well enough

    Scripts in a Frame: A Framework for Archiving Deferred Representations

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    Web archives provide a view of the Web as seen by Web crawlers. Because of rapid advancements and adoption of client-side technologies like JavaScript and Ajax, coupled with the inability of crawlers to execute these technologies effectively, Web resources become harder to archive as they become more interactive. At Web scale, we cannot capture client-side representations using the current state-of-the art toolsets because of the migration from Web pages to Web applications. Web applications increasingly rely on JavaScript and other client-side programming languages to load embedded resources and change client-side state. We demonstrate that Web crawlers and other automatic archival tools are unable to archive the resulting JavaScript-dependent representations (what we term deferred representations), resulting in missing or incorrect content in the archives and the general inability to replay the archived resource as it existed at the time of capture. Building on prior studies on Web archiving, client-side monitoring of events and embedded resources, and studies of the Web, we establish an understanding of the trends contributing to the increasing unarchivability of deferred representations. We show that JavaScript leads to lower-quality mementos (archived Web resources) due to the archival difficulties it introduces. We measure the historical impact of JavaScript on mementos, demonstrating that the increased adoption of JavaScript and Ajax correlates with the increase in missing embedded resources. To measure memento and archive quality, we propose and evaluate a metric to assess memento quality closer to Web users’ perception. We propose a two-tiered crawling approach that enables crawlers to capture embedded resources dependent upon JavaScript. Measuring the performance benefits between crawl approaches, we propose a classification method that mitigates the performance impacts of the two-tiered crawling approach, and we measure the frontier size improvements observed with the two-tiered approach. Using the two-tiered crawling approach, we measure the number of client-side states associated with each URI-R and propose a mechanism for storing the mementos of deferred representations. In short, this dissertation details a body of work that explores the following: why JavaScript and deferred representations are difficult to archive (establishing the term deferred representation to describe JavaScript dependent representations); the extent to which JavaScript impacts archivability along with its impact on current archival tools; a metric for measuring the quality of mementos, which we use to describe the impact of JavaScript on archival quality; the performance trade-offs between traditional archival tools and technologies that better archive JavaScript; and a two-tiered crawling approach for discovering and archiving currently unarchivable descendants (representations generated by client-side user events) of deferred representations to mitigate the impact of JavaScript on our archives. In summary, what we archive is increasingly different from what we as interactive users experience. Using the approaches detailed in this dissertation, archives can create mementos closer to what users experience rather than archiving the crawlers’ experiences on the Web

    ANALISIS SISTEM INFORMASI STMIK IKMI CIREBON MENGGUNAKAN WEBQUALITY (WEBQUAL)

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    This study focuses on the quality of STMIK IKMI Cirebon's website, which serves as an information system for the campus. The website provides information on various aspects of the school and can significantly impact user satisfaction. The study aims to measure the website's quality based on user perceptions using Webqual, a technique that measures usability, information, and interaction quality. The results can help improve the information system of the website and provide data on its quality. The study highlights the importance of website quality and user satisfaction, and the usefulness of Webqual as a tool for measuring website quality and improving user experience. By prioritizing website quality and user satisfaction, organizations can create more effective and efficient information systems that meet users' needsKajian ini berfokus pada kualitas website STMIK IKMI Cirebon yang berfungsi sebagai sistem informasi kampus. Situs web menyediakan informasi tentang berbagai aspek sekolah dan secara signifikan dapat mempengaruhi kepuasan pengguna. Penelitian ini bertujuan untuk mengukur kualitas website berdasarkan persepsi pengguna menggunakan Webqual, sebuah teknik yang mengukur kegunaan, informasi, dan kualitas interaksi. Hasilnya dapat membantu meningkatkan sistem informasi situs web dan menyediakan data tentang kualitasnya. Studi tersebut menyoroti pentingnya kualitas situs web dan kepuasan pengguna, serta kegunaan Webqual sebagai alat untuk mengukur kualitas situs web dan meningkatkan pengalaman pengguna. Dengan mengutamakan kualitas website dan kepuasan pengguna, organisasi dapat menciptakan sistem informasi yang lebih efektif dan efisien yang memenuhi kebutuhan penggun

    Student Satisfaction Analysis of Online Tutorial Through Information System Quality and Personal Services of Online Tutorial at Universitas Terbuka

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    Providing the users of learning supports with superior service has enabled UT to build and grow service commitment that can contribute to the needs of society, employees, and, most notably, students in online tutorials (tuton). Designed in a web-based environment, online tutorials is one of UT learning supports that offers versality of tutorial experience. One of the indicators whether optimal service applies to the business operations is measuring the satisfaction level of students as service users. This study aimed to figure out the satisfaction level of tuton students in terms of the quality of information system and personal service of online tutors at Universitas Terbuka. Data were acquired from 50 tuton-student respondents at UT 2017.1. The study found that the level of student satisfaction positively and significantly affected the variable of system quality, information quality and personal service of online tutors. The most dominant variables, in descending order, were system quality, personal service of online tutors and information quality. On that basis, this study settled on a framework of tuton-student satisfaction with respect to the improvement of system quality of tuton application, information quality and personal service of online tutors

    Knowledge-based banking: The bankers’ experience on OKS (Online Knowledge Sharing)

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    This paper outlines the results from a web-based survey of first time users of a bankers online knowledge sharing. Palmer´s web metrics were used to investigate the effects of key website characteristics on intention to return, satisfaction and self-efficacy. Partial least squares estimation was used to estimate both the measurement and structural parameters in our structural equation model. Statistical significance of the main relationships provided strong empirical support for author conceptual framework

    Characterizing and Improving the Reliability of Broadband Internet Access

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    In this paper, we empirically demonstrate the growing importance of reliability by measuring its effect on user behavior. We present an approach for broadband reliability characterization using data collected by many emerging national initiatives to study broadband and apply it to the data gathered by the Federal Communications Commission's Measuring Broadband America project. Motivated by our findings, we present the design, implementation, and evaluation of a practical approach for improving the reliability of broadband Internet access with multihoming.Comment: 15 pages, 14 figures, 6 table

    Dynamic optimization of the quality of experience during mobile video watching

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    Mobile video consumption through streaming is becoming increasingly popular. The video parameters for an optimal quality are often automatically determined based on device and network conditions. Current mobile video services typically decide on these parameters before starting the video streaming and stick to these parameters during video playback. However in a mobile environment, conditions may change significantly during video playback. Therefore, this paper proposes a dynamic optimization of the quality taking into account real-time data regarding network, device, and user movement during video playback. The optimization method is able to change the video quality level during playback if changing conditions require this. Through a user test, the dynamic optimization is compared with a traditional, static, quality optimization method. The results showed that our optimization can improve the perceived playback and video quality, especially under varying network conditions
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